# Stripboard Layout Request Thread

**URL:** <https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195>\
**Category:** DIY STUFF\
**Created:** [February 3, 2020, 7:02pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195 "2020-02-03T19:02:37Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 3, 2020, 7:02pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/1 "2020-02-03T19:02:37Z")

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I figure we should start a Request Thread for Stripboard Layouts!

Some of us are rather proficient with Fritzing, DIYLC, and various other Stripboard/Breadboard/PCB/etc. Programs and may be willing to lend a hand in our spare time!

I figure I will start this off with a Stripboard Layout Request for the [Schele Video Mixer](https://gieskes.nl/visual-equipment/?file=schele-mixer) -  
For some reason this one just confuses me and would absolutely love to build this in a stripboard/behind a panel for my Modular analog Video Synth that I am building.

Here are the pictures -  
 ![Schele-mixer-schematic-600](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/3e95c47b220114dfd096b872cec3b570c286e477.jpeg)  
 ![schele-mixer-fritzing3](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/84a02a7b7bebd87dda21e905f46ad4c240fcb0b4.jpeg)

 ![schele-mixer-angle-left](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/eb82419a89c9e8fb20ff778490d4e02fa68ece26.jpeg)

If anyone has the time to make a layout for this, it would be greatly appreciated 🙂

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 6, 2020, 5:53pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/2 "2020-02-06T17:53:58Z")

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bump  
lol…

Someone make this for meeeee 😛

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**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\
**Post date:** [February 6, 2020, 8:00pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/3 "2020-02-06T20:00:38Z")

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Looks easy enough to breadboard, then you could just transfer the breadboard layout to stripboard.

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 6, 2020, 8:18pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/4 "2020-02-06T20:18:03Z")

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For some reason this one is just confusing to me.  
I don’t know where the switches are place, don’t know where the pot is, dont know what the VR is, etc.  
Generally I just take it upon myself to stripboard layout something, but I am at a loss on this one lol. hence my request.

my brain no worky.

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**Author:** ![ChristianBloch](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/christianbloch/32/56_2.png) [@ChristianBloch](https://lookmumnocomputer.discourse.group/u/ChristianBloch)\
**Post date:** [February 6, 2020, 8:59pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/5 "2020-02-06T20:59:05Z")

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VR = voltage regulator, so 7805. The pot is 20K with the 1K resistor going to pin 2.

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**Author:** ![antoine.pasde2](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/antoine.pasde2/32/326_2.png) [@antoine.pasde2](https://lookmumnocomputer.discourse.group/u/antoine.pasde2)\
**Post date:** [February 6, 2020, 10:11pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/6 "2020-02-06T22:11:02Z")

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The PCB doesn’t match the picture (parts are not at the same place, there are regular switches instead of DIP switches). It could still be the same circuit but don’t try to combine them directly.  
One of the switches would then be the V1/V2 switch at the bottom of the schematic. The other three would be replacement for the DIP switch, but why not put them all together then?  
The PCB could match the schematic, I have not traced it, but no obvious differences jumped out to me.

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**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\
**Post date:** [February 6, 2020, 11:47pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/7 "2020-02-06T23:47:05Z")

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Yes. I’m sorry for being so dismissive about the difficulties. The use of terms like VR for “voltage regulator”, and the lack of directional indicators in the 9V to 5V circuit can be confusing (though it’s obvious once you realise this is essentially a 5V circuit powered from a 9V battery.)

The only thing that throws me is the circuit board diagram. I’d be inclined to ignore it completely and try to breadboard the schematic, then approach an appropriate community who may be willing to help you to get it working.

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 7, 2020, 12:18am UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/8 "2020-02-07T00:18:55Z")

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lmfao - there is a v1 and v2… I didn’t even realize it til you said they don’t match, that may have been part of what was confusing me…  
the Schematic is for the V1 -  
the Final Product pic is the v2…  
Heres the final product pic of the v1

 ![schele-mixer-01 v1](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/83bc47984597a89a1340590d53f5c801f8d6321f.jpeg) ![schele-mixer-02 v1](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/0f78ce6c2cb6e57f4dfd14118dc513ac60953164.jpeg)

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 9, 2020, 5:37am UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/9 "2020-02-09T05:37:51Z")

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I did figure out how I plan to lay everything out.  
I am going to work on the stripboard layout tomorrow at work lol.

 ![schele fun](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/6de173256bdb4e3205b96de99551842e607e08fa.png)  
I also realized I know how to manipulate the layers on DIYLC pretty well so instead of inkscape, I just used DIYLC to mock up the panel… lol

So if I wanted 12+ and 12- IN (from my modular power supply) - what would I have to change on the power portion of this circuit?  
Any help on this would be greatly appreciated 🙂

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<div class="post-metadata">

**Author:** ![antoine.pasde2](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/antoine.pasde2/32/326_2.png) [@antoine.pasde2](https://lookmumnocomputer.discourse.group/u/antoine.pasde2)\
**Post date:** [February 9, 2020, 6:18am UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/10 "2020-02-09T06:18:54Z")

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You can just feed the +12V in place of the 9V, the whole circuit runs off the 5V output of the regulator anyway. The 5V voltage regulator will just dissipate more heat, so you might want to use the regular to-220 7805 instead of the 78L05. (Basing my comments on the hand drawn schematic above.)  
There is no need for the -12V.

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 9, 2020, 8:35pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/11 "2020-02-09T20:35:11Z")

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Any advice on the Dipswitch? It only shows the emitter (before the 120 ohm resistor) going to 1 part of the 3 position dip switch.

From the PCB it looks like all 3 on the one side are connected, can anyone verify that?

I know nothing about PCB traces lol

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<div class="post-metadata">

**Author:** ![antoine.pasde2](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/antoine.pasde2/32/326_2.png) [@antoine.pasde2](https://lookmumnocomputer.discourse.group/u/antoine.pasde2)\
**Post date:** [February 9, 2020, 9:00pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/12 "2020-02-09T21:00:41Z")

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Yes all three on that side are connected together.

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<div class="post-metadata">

**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [February 11, 2020, 10:49pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/13 "2020-02-11T22:49:25Z")

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Alrighty guys, so I think I got it.

 ![Schele with board cuts](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/8b30fa70c36f74f2f781bca75b24ae3206a05927.png)  
 ![Schele](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/1X/3ce29f020690f4309988b625053b0799b5e30a02.png)

😃 Ordered the parts I needed that I didnt already have this afternoon. 🙂

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**Author:** ![Trumac22](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/trumac22/32/3900_2.png) [@Trumac22](https://lookmumnocomputer.discourse.group/u/Trumac22)\
**Post date:** [August 18, 2020, 2:24pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/14 "2020-08-18T14:24:15Z")

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Very dope! I’ll deffo give this a go in my foray into video synth over the coming months

EDIT: didn’t realise this post was 6 months old aha, came up on my feed somehow. nevertheless, still good. Did it work in the end?

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [August 18, 2020, 2:26pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/15 "2020-08-18T14:26:43Z")

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I wish my past hard drive didnt crash - I have a better version of it somewhere - might have posted it in the video synth thread but cannot remember - I ended up switching out the Dip switched for normal switches - it works much better.

And it DOES work 😃

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**Author:** ![Trumac22](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/trumac22/32/3900_2.png) [@Trumac22](https://lookmumnocomputer.discourse.group/u/Trumac22)\
**Post date:** [August 18, 2020, 2:27pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/16 "2020-08-18T14:27:40Z")

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Legend! Thanks for that mate

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**Author:** ![d42kn355](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/d42kn355/32/273_2.png) [@d42kn355](https://lookmumnocomputer.discourse.group/u/d42kn355)\
**Post date:** [August 18, 2020, 2:28pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/17 "2020-08-18T14:28:23Z")

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found it

> [@DIY Video Synthesis Thread](https://lookmumnocomputer.discourse.group/t/diy-video-synthesis-thread/100/21):
>
> Ok, so the cutout doesn’t actually omit the section from the board… lol but anyway, here it is updated with switches in place of the DIP and I rearranged the layout a little bit on the Panel.

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**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\
**Post date:** [November 23, 2020, 8:34pm UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/18 "2020-11-23T20:34:09Z")

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![image](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/0/08fe4dd9de1e668c486c434bb6c6a8253c92949b.png)

Now that more people are learning stripboard software, can I bump this thread? 🙂

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**Author:** ![Caustic](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/caustic/32/15588_2.png) [@Caustic](https://lookmumnocomputer.discourse.group/u/Caustic)\
**Post date:** [November 24, 2020, 12:38am UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/19 "2020-11-24T00:38:03Z")

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I see a bunch of OpAmps, is it safe to assume the IC1 A/B and IC2 A/B are comparators?

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [November 24, 2020, 12:53am UTC](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195/20 "2020-11-24T00:53:59Z")

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Don’t need to assume, there’s a page  
[http://musicfromouterspace.com/analogsynth\_new/OLDIESBUTGOODIES/VCF/vcf24dbperoct.html](http://musicfromouterspace.com/analogsynth_new/OLDIESBUTGOODIES/VCF/vcf24dbperoct.html)  
As it says above IC1B and IC2B, they’re LM13700 OTAs.

[Next page](https://lookmumnocomputer.discourse.group/t/stripboard-layout-request-thread/195.md?page=2)
